Cyclization reactions are useful in many markets and industries for the formation of carbon or heteroatomic cycles and are common in various industrial chemicals. One example of a cyclization reaction that is becoming more common in the pharmaceutical and fine chemical industry, is the use of ring-closing metathesis. This variant of alkene metathesis closes rings through the intramolecular metathesis of two alkene functional groups.

Whether your catalytic cyclisation reaction is mediated via metathesis, cyclopropanation, or any other reaction, we have the on-hand expertise to provide the efficient and effective catalysts that can accelerate your ground-breaking chemistries. Our Umicore Grubbs Catalysts® are the best in class for performing complex ring-closing metathesis reactions to form various polycyclic compounds. Browse the most relevant products below, or get in touch to find out how we can work together to create ground-breaking reactions.

Show all products

Interested in these reaction types?


      Umicore uses certain monitoring and tracking technologies such as cookies. These technologies are used in order to maintain, provide and improve our services on an ongoing basis, and in order to provide our web visitors with a better experience.

      By clicking on the "Accept all" button you agree to the use of these cookies while using the website. For further information regarding how we use cookies and other tracking technologies, please see section 11 of our website privacy notice

          Necessary cookies are essential and help you navigate our website. This helps to support security and basic functionality and are necessary for the proper operation of our website, so if you block these cookies we cannot guarantee your use or the security during your visit.

          Cookies that help us to understand the behaviour of users of our website. This allows us to continuously improve our website to provide the best information in support of our project aims. These cookies also help us understand the effectiveness of our website. For instance these cookies tell us which pages visitors go to most often and if they get error messages from web pages.

          Cookies that deliver content to you based on your interests, which are assumed from your browsing history. Most Targeting Cookies track users via their IP address and, thus, may collect some Personal Data. Personal Data collected by Targeting Cookies may be shared with third parties, such as advertisers.